This week, I focused on integrating UWB technologies into our iOS app to enable shopper location tracking between devices. I set up the Nearby Interaction framework in Xcode, adding the required capabilities and permissions (Nearby Interaction, Local Network Usage). Then, I implemented code to initialize an NISession and use MultipeerConnectivity to exchange discovery tokens between iPhones. This allows two devices to establish a UWB session and start getting distance and direction information, acting as the foundation for the indoor location tracking we are aiming for.
I also built out the flow within the app so that tapping the “Connect” button on the Welcome screen initializes the UWB session. After this, I deployed the app onto two iPhones. The app now builds and runs on the two devices, simultaneously advertising and browsing for peers. Terminal and Xcode logs confirm that peer discovery and UWB session initialization attempts are working, meaning I’ve created that initial communication layer.
According to our Gantt chart, my progress is on schedule, as the goal for this stage was to establish a working UWB connection between two devices.
Next week, I plan to finalize the app and get the UWB session fully functional between two iPhones. My immediate goal is to have the devices successfully exchange discovery tokens and run a stable session, then output real-time distance and direction data so that we can use that data to start building code for the Raspberry Pi and the controls on Basket Buddy. Additionally, if I have additional time, I’ll look into how we can integrate LiDAR sensors into our system.
Mobile App Local Network Connection on Two iPhones:
